Doctor profile · Federal record

Dr. Thaddeo Oconer, MD

Nephrology Physician (CMS: Nephrology) · Specialist · Mesa, AZ

  • NPI 1104928571
  • Accepts Medicare
  • 38 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
612 W Baseline RD
Mesa, AZ 852106041
(480) 834-9039
fax (480) 964-7802

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
May 25, 2012
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State licenses (2)
Arizona #40121 · Guam #M001478
Medicaid
AZ #354819

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104928571. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,240
Distinct HCPCS
10
Medicare allowed
$206,483
HCPCS Description Services Patients Avg allowed
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 545 84 $59
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 512 155 $77
99213 Established patient office or other outpatient visit, 20-29 minutes 420 192 $73
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 181 69 $48
90960 Dialysis services, 4 or more physician visits per month (20 years or older) 164 31 $341
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month 127 68 $44
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 75 70 $126
99454 Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days 50 15 $48
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 38 24 $115
99457 Management using the results of remote vital sign monitoring per calendar month, first 20 minutes 38 13 $47

In context: peer comparison

Among 13 peers in this city , average services per provider: 202. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$521
Transactions
26
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
Amgen Inc. 11 $198.98
Otsuka America Pharmaceutical, Inc. 4 $97.72
Bayer Healthcare Pharmaceuticals Inc. 3 $43.11
Ultragenyx Pharmaceutical Inc. 1 $42.50
Mallinckrodt Hospital Products Inc. 1 $23.09
Daiichi Sankyo Inc. 1 $22.60
Alexion Pharmaceuticals, Inc. 1 $21.06
RECORDATI_RARE_DISEASES_INC. 1 $20.93
Novartis Pharmaceuticals Corporation 1 $18.35
AstraZeneca Pharmaceuticals LP 1 $17.82
Ardelyx, Inc. 1 $14.54

By nature of payment

Food and Beverage
$521

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,034
Patients
274
Total drug cost
$42,941
Drug Type Claims Patients Total cost
Calcitriol Generic 325 98 $4,826
Furosemide Generic 117 35 $779
Amlodipine Besylate Generic 111 31 $627
Allopurinol Generic 65 19 $925
Potassium Chloride Generic 62 15 $1,743
Losartan Potassium Generic 59 14 $816
Sevelamer Carbonate Generic 51 19 $7,357
Hydralazine Hcl Generic 42 17 $368
Lisinopril Generic 40 15 $274
Prednisone Generic 31 0 $237

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thaddeo Oconer's medical specialty?
Dr. Thaddeo Oconer practices Nephrology Physician in Mesa, AZ.
Where does Dr. Thaddeo Oconer practice?
Dr. Thaddeo Oconer practices at 612 W Baseline RD, Mesa, AZ 852106041. Office phone: 4808349039.
What is Dr. Thaddeo Oconer's NPI?
Dr. Thaddeo Oconer's National Provider Identifier (NPI) is 1104928571, issued by NPPES.
Does Dr. Thaddeo Oconer accept Medicare assignment?
Yes. Dr. Thaddeo Oconer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thaddeo Oconer commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services (HCPCS 99490); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.